In relation to your point #2 (the song's key).

F is the relative major of Dm - both have Bb in the key signature. I'll have to do some experimenting here because I'm not sure how accurately ACW differentiates between minor keys and their relative major.

To be fair to ACW, there is nothing that really identifies "Sultans of Swing" as being necessarily in D minor. The C and Bb chord are much more appropriate to F major than D minor and there is no Gm chord that I'm aware of (chord IV in the key of D minor) to help the identifying process.

Sultan's of Swing is unusual in this regard.

Regards,
Noel


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